chore(deps): update dependency @web/test-runner to ^0.20.0

Author: renovate[bot]

packages/instrumentation-browser-navigation/package.json

@@ -56,7 +56,7 @@
     "@types/chai": "^5.2.2",
     "@web/dev-server-esbuild": "^1.0.1",
     "@web/dev-server-rollup": "^0.6.4",
-    "@web/test-runner": "^0.18.0",
+    "@web/test-runner": "^0.20.0",
     "chai": "^6.2.0"
   },
   "dependencies": {

packages/instrumentation-document-load/package.json

@@ -61,7 +61,7 @@
     "@types/chai": "^5.2.2",
     "@web/dev-server-esbuild": "^1.0.1",
     "@web/dev-server-rollup": "^0.6.4",
-    "@web/test-runner": "^0.18.0",
+    "@web/test-runner": "^0.20.0",
     "chai": "^6.2.0"
   },
   "dependencies": {

packages/instrumentation-web-exception/package.json

@@ -59,7 +59,7 @@
     "@rollup/plugin-node-resolve": "^15.2.3",
     "@web/dev-server-esbuild": "^1.0.1",
     "@web/dev-server-rollup": "^0.6.1",
-    "@web/test-runner": "^0.18.0",
+    "@web/test-runner": "^0.20.0",
     "chai": "^4.3.10"
   },
   "dependencies": {